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Re: RFC: NSS prototypes


On Mon, Dec 18, Ulrich Drepper wrote:

> Thorsten Kukuk <> writes:
> > I could use them, but struct __netgrent can only handle the case 
> > where you have one module in the /etc/nsswitch.conf netgroup line,
> > not more. One module will overwrite the data from the previous
> > module.
> If you look closely you'll see that the reason why the structure is
> passed to setnetgrent is to get around the problem of having a static
> buffer and also to allow multi-threaded applications.  I remember that
> the NIS stuff had some limitations but I think at least the
> multi-threaded use should be possible.

No, our SunRPC implementation is not multi-thread safe. So NIS
cannot be multi-threaded, too. In the moment all NSS NIS functions
have a global lock.

And the argument does not solve the problem that the next module 
will overwrite the data from a previous module.


Thorsten Kukuk
SuSE GmbH            Schanzaeckerstr. 10            90443 Nuernberg
Linux is like a Vorlon.  It is incredibly powerful, gives terse,
cryptic answers and has a lot of things going on in the background.

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